Method of and apparatus for distributing cars



June 1,1926.v Y YEMP'. HArNEs METHOD 0F mi; APPARATUS FOR l'usvmml'aufmcI CARS 'N n'venor. gw/v@ i Aiorney. l

E. P'.HA|NEs METHOD OF AND APPARATUS FORk DISTRIBUTING CARS Filed March 51 1922 j `5 sheets-sheet' 2 Fig. 6.1

June 1 ,.-1926.

Inveor.

1,586,989 v E. P. HAlNEs METHOD OF AND APPARATUS FOR DI'STRIBUTING-CRS Filed March 31, 19'22 sheets-sheet s June 1 1926.

ST E v mm 2 n L mw uw.

E Wh K une 1 1926. l

v' 1,586,989 E. P. HAlNEs METHOD OF AND'APP'ARATUS FOR- DISTRIBUTING CARS' Filed March 51', 1922 `5 sheets-sheet' 4 Inventor.

E P. HMNES METHOD oF AND APEAnATUs FOR. DLSTRIBUTING lGARS j .Filed Mrohlsl, 1922 5 shets-snex 5 FW. /4 .l

Jun@ 1,1926, 4 www@ -I'nvemor.

i* jAtrney,

Patented June 1,. 1926 UNITED sTATEs PATENT oFFlcE.

EDWARD P. HAINES, OF PHILADELPHIA, PENNSYLVANIA.

4 Jamison or AND Ariaanai-ars ron Dls'rnrnurrne sans.`

Application led March 31, 1922. Serial No. 548,30?.

y invention relates to a method of and ratus foruse in connection with the trackagesystem of a freight yard of such design that a car or groupof cars being moved by'means of a pusher orfacceleraton V@ver a length of track, will' have imparted to it a certain definite speed whereby it is caused to travel to the ends or other desired portions of the various branch tracks ontowhich it is switched, and one object "ofthe present invention is to-provide. a system whereby a deiinite and predetermined vspeed may be imparted by 4any suitable motive power device to' a car or a number of cars.,

which speed shall be dependent upon and va-- r vide automatic means for determining the torce applied to'a car or number of carsl being'moved by accelerating means and sov combining this force with the distance moved and the acceleration produced to automatically determine vthe frictional .re-`

sistancesencountered during the application of the force. v v j g Another object of my invention is to provide automatic means, with or Without hand controlled means, for determining the speed at which each car must travel to reach an' .automatically determined point on any one of the branch tracks in accordance with the distance of said point. y

Another object of my invention is to provide means for indicating the instant a predetermined speed has been reached by a car or group of cars, said indicating means to Vhe used either to signal the operator or to automatically cut off the source of power.

To this end` lt have devised appaagatusyof thecharacter 'hereinafter described.

For an illustration of some of tlfvarious forms of my apparatus mayl take. reference is to 'be had to the accompanying drawings, in which Fig. 1 is a plan of portions of freight repoint from the starting- -ceiving and classification yards, the exact i arrangement of whichforms no part of my invention, but is shown, to more clearly ily i lustrate `its application.A A n Figs. 2, 3 and 4 are respectively fragmentary elevation, lplanand section of a portion of a track, with l-portions of the apparatusA associated therewith y -Figl 5 illustrates a portion of the apparatus used for obtaining the weight of one or more cars consecutively. F ]Fig. 6 is a Wiring diagram of part ot Fig. -7 is` anl` elevation of a detail of Fig. 6.; y

IFight; is la. diagrammatic illustration of apparatus for. measuring the force applied to a car and means of combining this with the distance through which the force is applied.

Fig. `9`is a wiring diagram of a vportion of Eig. s.

Fig. 10 is a wiring diagram of a portion the apparatus used for distance control.l

of this apparatus. v Fig. 12-is a sectional view on the line AA of- Fig. 11.

. Fig. -13 shows the part of the apparatus which determines the friction of the cars and the speed at which they shall be dis- ]Fig. l1 is`an enlarged view of a portion `of the branch tracks of a freight yard and.

patched in order to reach the desired destination.

Fig. 14 lis a plan view of the scale beam of Fig. 13.

nlFig. l of the above drawings, 1 represents a railroad track connecting a freight receiving yard 2 .and a classification yard ,3, andparallel thereto is a track 4 such as 1s ,commonly used by a paling engine for. ac-

celerating cars to the classification yard. I do not limit my invention to this form of accelerator but show this commonly used arrangement in order to more clearly illustrate its application.

Fig. 2 shows track more in detail with a poling car 5, the locomotive or other source of power not being shown, with a portion of' a polerused to push a car or group of -cars on track\1'(ld`ig. 1). 7 is the pressure cylinder portion of the. force measuring apparatus' which l shall describe later.

Referring' to Figs. 3 and`4 illustrating means for transmission of the motion of car to other apparatus, 8 is a continuous ropeV or belt suitably protected by enclosures 8 and 8", passing around sheave 9 located near one end of track 4 and an idler sheave 10 located at -the other end or suitable point of said track. The motionof said carl 5 .may

be transmitted to rope 8 by a suitable grip 11 attached to the car frame as at 12 and provided with a hand lever 13 for either releasing or regripping the rope. The mol `tion'of sheave 9, caused to rotate by saidrope, according to the movement of car 5,

is` trans mitted vto other apparatus by means of shafts 14 and 15 and pair of bevel gears.

16, sprocket 17 and link belt 18 or other positive' driving means.

For obtaining the weight of a car or group of cars,I locate a scale 19, Figs. land 5 nearthe receiving end of track'L Refer-- ring to Figs. 5, 6 and7; the scale`19 is of such length as to weigh only one truck of one or 'more' cars at onetime, the customary.' vlevers supporting the-platform and mechanism operating the weight indicating arm 20 mounted on the rotating shaft 21, forming no part of my invention are not shown. As a means forobtalnmg the total weight of a series of car trucks, or a movement o other apparatus in direct proportion thereto,

` I provide a motor, 22, the shaft 23 of which is in line with shaft 21, and hasl an electro magnet 24 secured to it,^and a wheel 25 4rotatof wheel 25 is a disk 26 which, when magnet; 24 is excited forms a magnetic clutch sothat ably mounted thereon. Attached to the hub Wheel 25 will rotate in unison with said motor.- vAtt-ached to the rim of wheel 25 are conductive'segments 27"and 28. A spirall spring l-29 is attached at lone end`t0 wheel 25 and the other end to a fined pin 30.

The scale arm 20.c arres an electric lcon-v tact 31 which is connectedto one terminal of a source of current bythe conductor 39Il and when either the arm 20 or wheel 25 moves lfrom the sition shown in Fig. contact is made wit either one or the other of the segments 27 and28 which-are connected to the controlling windings of double-pole electro-magnetic switches 32 and-33, the second' V terminals of said windings connectingthrough the conductor 3 4 and switch 35, which is'normally closed, to one of the rails 36 of the scale 19 andthe opposite rai-1 section 37 is connected tothe second terminal A'of the source of electricityI through Vthe conductor.

The rails 36 and 37 electrically in'- sul-ated from all other parts of the appa-- ratus.` Each of the switches 32 and 33 has none pair of'its terminals respectively connected to lthe terminals of the armature of motor 22 and Ythe other pair' of said terminals respectively connected to the positive 'andnegative conductors and 40. 41 and 42 are the rails of the'a'pproach track and 43 and 44 of the departure track of said scale.

ring 48, brush 49 and conductor 50,'is immediately energized so that? the ring segments- 2T and 28 will move in unison with motor 22.

The Weight of the car wheels will cause fthe scale arm 20 to move-say to the left (Fig.

6) and close the circuit through contacter 31 and segment 27 vcausing switch 32 to close and start motor 22 .which will rotate the segments 27 and 28 inthe same direction as arm 20 is rotated. After thev full weight of 4the truck has come onto the scale and arm 2O has come to rest in a position corresponding .to the Weight ot said truck, the gap between the motor-driven segments 27 and 28 following closely the movement of the arm will be brought into registry with -the contact 31 thereby breaking the circuit of themagnet of. switch 32 thus opening the switch and' causing the motor to stop after having l moved an amount proportional to the weight of said car truck. After the above -unction has been'performed, but shortly before the forward Wheels leave the scale, the portion of thev car truck 51 which project-s beyond the rails Will enga-ge the lever 52 opening -the -switch 35 and the circuit through the magnet 24, 'releasing wheel 25 which will be returned to the zero position, against a suitable stop, not shown, by spring 29, the motor remaining in the advanced position, as the operatlngmagnet c1rcu1t olf the switches 32 l and 33 is likewise opened by switch 35.

When the truck'has left the scale and is clear\\\of thev lever 52 .the switch isclosed by a spring 4not shown, and the apparatus will repeat the cycle each time a car; truck passes over the scale so .that the total! advance of the motor is indirect proportion tot-he total weight of thev several trucks.

-Igtransmlt the; movement ofthe-motor 22 positively to another 'part -of the apparatus,

and forconvenience 'of illustratiomemploy thesprocket 53 and link belt54or pur- I provide ineens for returning the motor group of-cars, whichI will be described-later. Referring to- Fig. 8,7 is a pressure cylinden here shown in section having a s'tuiiing box 53 and a piston 54iwhich carries at its outer end a socket 55, for the pushing pole 6 -(ll` ig. 2), with springs 5 6 to absorb shock. 'Cylinder 7 is filled with oil or .other liquid -the pressure of whichv varies as the force ex- '-to its' zero position, after weighing a car or erted on the pole. I employinovel electrical means for recording this pressure on other V apparatus not located on the car consisting ot'a pressure gauge used to vary the resistance of an electric circuit.`

The pressure in cylinder 7 is transmitted through a tube 57 to the ivell'58` of a niercury gauge the column 59 of which is used as a lconductor in an electric circuit one ter-- minal of which 60 is in the well58 and the other 61 provided by a suitable float on the top of the column so that variations in pressure cause a change in the height of the column and the resistance. and current in said circuit. The. terminal 61 is connected b a flexible conductor 62 )assino' over aA float. The above described cylinder and pressure gauge being preferably mounted on car 5 the conductors 67 and 68 lead respectively to brushes 69 and 70, Fig'. 2 inaking contact with rails or conductors 71 and' 72 parallel with track 4. In order to have a circuit of uniform length and resistance independent of the position of the car 5, I connect theconductors 7 3 vand 74 to opposite ends of the rails 71 and 72. It is obvious that I may use the track rails .4, if bonded, in lieu of either of the'rails 71 `or`72 provided I use a material for the other rail of equal resistance to the combined rails 4 and make the connections in a similar manner.

The conductor 73 connects through one pole of the switch 75 Fig. 13 to the positive conductor 76. The conductor 74 connects through an-ammeter 7-7 (Fig. 8) through the second pole of' said switch to the negative conductor 76a of the same circuit.

It is evident, with a constant voltage impressed on the terminals of the conductors 73 and 74, that any variation in pressure in cylinder 7 will cause a change in the. height of the mercury in the column 459 and the resistance and thereby the current in said circuit and through the amineter 77 causing a corresponding movement of the arm 78 of said ammeter, the position of which will therefore represent a-ceitain pressure, exerted on the pushing pole 6. used to accelerate a car or cars. In order to obtain a movement which shall vary directly as the product of the force applied to pole (S multiplied by the distancethroughwliich said car moves, I drive, with the link belt .18, (Figs.

3 and 8) the sprocket 79, the unidirectional' clutch or ratchet 80, shaft 81 and the. 'disk 8.2.engaging1which is a friction wheel 83 mounted on a spline shaft 84 whose axislv ,intersects theiaxis of' shaft 81.

y It is evident that if the wheel 83 is moved radially .from the centreof disk 82kin proportion to the icar during the application of said force.

.100 and 101.

force applied to said pole, therevolutions of wheel 83 caused by contact withtdisk'82 will be in roportion to the product of said force multiplied by. the lmovement ofsaid For moving the wheel 83 on vshaft-84 I Aprovide a motor 85 having ar pinion 86 'engaging the rack 87 which slides through the guides 88 and 89 and has secured to it an arm A90 engaging the groove 91 onthe hub of Wheel 83. Referringto Figs.`8 and 9; for controlling'tlie motor 85 the pinion 92 lengages a gear 9 3 on wheel 94 attachedto .which are4 conductive segments 95 and 9 6 which are connected to the controlling' windings of double pole electro-magnetic switches 97 and 98 whose second terminals are connected .to the negative conductor 99. Each of these switches 9 7 and 98 has one pair of its terminals respectively connected to the armature terminals ofthe motorl 85 and the other pair of said terminals connect'- Aas ed to the positive andnegativeterminals The amineter arm 78 carries a contact brush 102 which is connected to .the pms'itive conductor 103. lVhen the amineter arm 78 moves in either direction from the osition shown contact is made withone .orq't e other of the segments or 96, for instance say 95, then current wouldbe free to flow from the yconductor 103 contact.brush`102, segment 95, windings of switch 97 to the negative main 99, closing said switch, and starting the motor 85 which will rotate the wheel 94 until the gap ybetween .the segments 95 and 96 comes opposite the contact 102, opening the circuit through said switch winding thereby causing` switch 97 'to open and stop said motor. It is evident that the reverse movement may be similarly made so that the motor Will. shift the friction wheel 83,

through the mechanism previously described, to a position depen-dent upon the location of contact 102which depends on the pressure exerted on pole 6 thus securing the desired result.

Referring to Fig. 10: 103 is a motor which" `is caused to rotate and adjust other .ap-

paratus in accordance with the distance the` car shall travel. p branch tracks 'of a classification yard, 107 part ofthe track over which cars travel to said` branch tracks, 108 the outbundntrack,

the latter having iio special connection` with my invention.

104-106 are some of the Each ofv said branch tracks is respectively wired to manually operatedi" switches 109-111, amineter coils 112-114,

ring segments-120 Since i thev said tracks all operate in a similar manner I shall describefthe cycle' for 'track 104 only.

l1l isa sectional vieivof one ofthe ammeters controlling' the movement of motor 103 ina-similar manner to that described for motor4 85.l The ring segments 115 andll-G- v103 byI means of shaft 123 and bevell ears 124 and 125.` Gther spur gears 126an 127 y and pinions 128 and 129 are provided for ammeters 113.'and 114. Each of the` double'.

pole electro-.magnetic switches 130 and 131y (Fig. has one pair' of itsvterminals" respectively connected j to. the armature of. motor 103 andthe otherhpair'of said terminals connected to the positive and negative conductors 132 land l133. I' have shown the contactor' 134 (Figs. 10 and`11),carried by animeter arm 135, touching the segment ,115; if then, switch 109'is .manually vclosed current willdiowfrom t-he positiveI conductor 136, through theholding lmagnet and one of the poles of' 'said switch, the operatingmagnet of switch 131 (closing the latter) to segment 115, contactor 134, ammeter coil 112, the second pole of switch 109, to one rail of track -104 'at .137, this-'rail being bonded'the circuit is continuous-to'the'other'end, 138, of same, Where connectionl is made to the opposite rail at 139, which is also-bonded and connected' at 1,40 to the negative conductor 141 completing the circuit. The circuitie mains closed until the motor 103 rotates the gear 121 until the gap between the segments 4 115 and-116 is opposite contactor 184 when both switches 109 and 131 open, stopping the motor after the completion of the required distance adjustment. AAdjustment in. the reverse direction 'is similarly accomplished.

As the branch tracks 104-106 are unequal distances from the starting point,.142g(Fig. 1), where power is first applied, I provide means for adjusting each ammeter, by rotation on the truiinions 1'43 and 144,' Fig, 11., and after' setting for thedistance corresponding to the most distant part of said branch track, suohas 138 of track 104,'it is` held in place by the thumb screw .145. Havingmade the above adjustment, it will be noted that as the branch track 104 fills with cars the resistance of the rail portion -of the circuit 'between lthe points 137 and 140 will f' deci-ease, beingshort. circuited by said cars,

in direct proportion' to the remainin length thereof. Having a constantvoltage the conductors'13'6 and 1'41'the above'cliange pei-es [towing in said circuit anda consequent,

in resistance Will-cause a vchange in-theainchange in the displacement of the ammeter arm 135. In order that ...his displacement may be adjusted to represent the change in distance which the succeedin carsare 'reg quired to travel, and in accor ance with the condition ofsaid branch track, "I rovidea 'meansfor changing th'e scale of'. e

.opposing the torque of -the--eld e'leinentof` said' ammeter.V The' said field torque' fis transmitted through the spur'gears 146 and 147 (Fig. 11) shaft-148 to the torsiongsprl'ng 149 theoppositeend'of which Vis attached to the ammeter frame at 150. I preferably employ' a springof rectangular section as shown more clearly in Fig. 12, which is a section on A A of. Fig.V 11, Athe spring ts material, as indicated at 104, 105l and 106",

respectively, and said rails are insulated' from their crossties` (not shown) by any suitable means, such as plates of insulating material (not shown) the rails and ties.

`inttirposed between Referring'to Figs. `13 'and 14, 15.5 is' a y scale beam, suppoitedfon the fulcra 156 and' 157 and provided with la Weight 158'Whose 'position is a measure of the total revolutions of the' friction Wheel` 83, Fig.v 8, Whose motion is transmitted to the Weight through Kmechanism to be described later,

(Fig. 13) bevel ,gears 161', and screw'162.

and sprocket 159, link ,belt 159, sprocket 160,-

The position of link 163 with relation to the fulcrum of lever 164. is dependent uponv the .distance the car 5 Fig. 2) moves While accelerating force-is eilig applied to tliecarv or cars being shifted as motion is transmitted from shaft 81, through mechanism and sprocket 165 (Fig. 8)v link belt-166,

.sprocket 167, bevel gears 168, pinion 169 and gear segment 170.

`v yThe location of link 171, with respect to the fulcrum of lever 172, is dependentupon .the total distance .the caror cars shall travel .less the distance ltraveled during acceleraics tion. :The movement of motor 103, the position o f. Which-has been shown to beara direct relationto the total distance a car or group of carsl shall travel to .reach the predetermined. destination is transmitted through.. bevel gear 174, whiohtis 'rotatably mounted on shaft 175,' to the bevel inion 176, which i'sy rotatable. 'on -al'stud'vv ich is-fkeyedto shaft ,'17 5. .The double faced bevel gear 177, also rotatably mounted on said shaft and engaging -bevelpinion' 176,l isrotated by the bevel pinion 173, double faced' thebevel pinion' 178 and sprocket .167, in

acceleration,so that the shaft 175 isl given 'A vproportion to the distance traversed 4during ,and gear 'segment 181 attached to-.link

171, causing proper adjustment of said link.

p The location? 'of link l182 with relation to lever 1 83 which is'rigidly connected tothe scale beam' 155 is dependent upon the total `with an indicator and lever 183 maygraduated 4in suchy manner that the weight Maanen sprocket 184, bevel gears 185, pinion 186` and gear segment 187 attached to said link. lt is obvious .that link 182- may be provided be of a car or group of cars may be read from said graduations.

l provide two centrifugal governors 188 and189which are'rotated at a speed in di-l rect proportion to the speed of car or carsbeing accelerated, by means of the shaft 81,

sprocket 190, (Fig. 8) link belt 191, sprocketv 192 and pairs of bevel. gears 1293-196. The centrifugal members of said governors are exact duplicates sov that each exert-s a force directly proportional to the square of the velocity of the car or cars being accelerated. Governor 189 `is 'connected through lever 197,1ink 198, lever 172,11111; 171, lever 199,- link 163 to lever 164, which is connected Ato governor 188 by link 20.0.and lever 201, and

at the opposite 'end by link 182.150' the Scale: 1 beam. 155'; v 4

1t canhe demonstrated that :withth'e parts of this weighing mechanism adjusted,

as "des'cribed, in' accordance with the various elements .entering intolthe case, that I have so `measured the resistances of the car or cars being accelerated, that they will have the required speedto carry them to the desired destination at the .instant that the torce exerted by the governors 188 and.189 counter balances the force exerted bythe weight 158..

I have provided a coiinterhalance 202v for 'lever 201 "which has been extended to control two two-pole switches and 223-. When the required speed hasbeen attained,

governor 188 will lift the lever 201 and. openthe circuit73, 74

lwhich will permit the relay 203, (Fig. 2) to Clo'sethe circuit of the battery 204 and ring the bell 205 as asignal to the engineer to shut oi power. 1t' is obvious that this' relay 203 may bearranged to set. in operation-means for autos" inatically .shuttingof the source of powelg without departing from my invention.

Having completed the forward cycleit is' necessary to provide means for returning' weight 15.8 and links 163'an'd 182 to .their zero positions. For this purpose I have provided similar apparatus lfor weight 158 and link 163. Referring to Fig. 8 A,the .clutches 206 and 207, the details of which not forming a part of' my invention are not shown, are set for? transmission by l springs 'an provided with solenoids 208 and 209 for releasing. One part of each of said clutchesv is attached to the 4shafts 210 and 81 and the other to the shafts of motors 211 and 212 to the opposite ends of Whose shafts are attached the sprockets 1591'and tro-magnetic switches 219'and'220. When y the governor 188 raises lever 201 the con' ductors 221 and 222 are connected throughl a two-pole switch 223 (Fig. 13) to hthe positive and nega-tive conductors 7 6 and 7 6I causing the two-polfe electro-magnetic 'switches 219 and 220 to close, and, connecting to the positive and negative conductors 224 and 225, energize `the solenuidfs''208A and 209 re- -leasing the clutches. 206 andv 207, leaving .the motors 211 and ,212,- likewise energized, free to returnrespectivelythe weight 158 and "link 163, to their Zero positions, vupon reaching. which thev said Weight and link open their respective limit switches and said motors. The switches219 'and' 220 are provided 'with holding-in magnets 226 and 227 sof that a subsequent change in the position of governor 188 will not interfere with the completion of this function. l

Referring to Fig. 6, switch 228 is provided. to 'return motor. 22 and link 182' .Cut Offers 1 In order thelapparatus illustrated inFig. 13 will indieate when thek required' speed has been at? tainedby a car orcars,in'order that said car or cars shall reach the desiredy destination, ,reference is had .to the following equations:

i y 1 1 Pride-fr' j e), iZ-qif 'ie gema,

1n which: v l Dztotal distance 'from starting point toA final destination of car. f

tion.

stop

turned toA the starting point-tor thenex't I tov demonstratethat the part of .Y

- fil-:distance car ismoved during, accelera-n work 'performed on" the-car is equal-to the resulting kinetic energy of the car'plus the iowork lostin-fri'ction. p' 'Equation'2 is amore c o equationlj.; V t Equation 3I may be stated as: The kinetic@ ener 4'at inalspeed of acceleration must# final acceleration and final destination 'in order that the; oar-.fehally travel to the said.. destination as required. l v Equatoriale-isa more convenient form of equation Referringl fv l3, the .'noinent of weight 15.8 about the fulcra of the beam 155 isa measureof Ed-andthedistance Vof the pin 232.' engaging; theglever- 183 from the same fulcra" .is-pro' of the car, so thatj e` upward force exerted by link 182011 m1123315 a measure of and this forceistransmitted through `lever 164 to pin 234; where it is opposed by vthe upward force of the governor 188 which is a measure,'in the Vsame units, of

but, 'from equation 2,

'ne s "W 2g v Therefore the unbalancedforce .at pin 2311 is a measure of `df. The distance of pin 235 .which engages lever 164 from the centre line throughthe fulcrum 236 of said lever and pin 237 is a'meas'ure' of'd,.so that the force exerted by Alink 163 on pin 237 is inversely proportional' to d multiplied by df, and is therefore a measure of the friction, f, of the car or cars being acc elerat`ed. r1 he lever 199 is interposed to change the direction ofthis forccwhich is transmitted by pin 236, link 171 and pin 237 upwardly to lever 172, but thedistance'of pin 237 from the fulcrum -238 of said lever isa measure of D-d so measure o f -that the force at pin239 is a measure .of

f D-cl) which from equation' 4 -is 'equal` an oppositepat the crit1cal-speed,"to' the exerted b ,governor 189 therefore when the said mec anism is in equilibrium the rev v Vvenient form of 'ua' the f liotonal losses-between the points l tained.

' rtional'to the weight l (pxiired. forl the car or cars to reach t e predetermined destination has been attained. Since the said governors can be designed` to be yunstable in this condition, an infinitesimalincrease of speed .Willcause a [movement of the mechanism and allow gov- .ernor 188 to'- fornr its functions aspreviously descri d.: Y

From the foregoingdescription itwill be seen that means have been providedz-V For the "automatic determination of the y frictionalresistance-offa'car or cars during aperiod of:I acceleration by a source of power, f

For the determination of the speed prequired to carry said car or cars to a predetermined destination, and either for the setting of'a signal or the cutting oi of power.

fromf said v'car when said speed 'has' beenat- For automatically determining- ,performed on a' car or cars.

weightof a car or group-of cars in'motion. For a vcombined manual and automatic de- For automatically obtaining the tota?A the Works.`

termination of thedistance a car is required to travel to reach a predetermined destination f Although certain specific embodiments of theinvention have been illustrated and describedI `do not intend to be limited to the Iparticular Vdevices shown andy it' should be understood' that further changesinA the construction and arrangementfof the various lcoop'erating'parts maybe made without departing from the spirit or scopefof the invention as' set forth inthe following claims.

It is to be understood that the expression .Vcar when used in the appended claims may.

1. 1A method of applied to a car or cars by a 'source of power; consisting of hydrostatically varying the r'esistance of'an electric ycircuit in proportion a single car or a group of Kto ,the force exerted .on said car or cars.

' 2.A A method'for automatically determining thefcoeflicient of friction of avcar or group of cars per'unit of distance and weight comprising 4the determination of the work performed, on said car or group of cars by a source of power, ascertaining the second power of the. speed produced by said work,

obtaining .the total weight of said car'or cars, and combining the aforesaid determinations and eliminating the distance traversed during the performance' of said work so that the unbalanced force is a measure of the coeiiicient of friction of'said car or cars,

3.1A method of automaticallyl predetermining the speed required in lorder that a car or group of cars may reach a predetermined destination; comprisingy the step of indicating when said speed has been attained determination of the force liti -loination `with a car,

and the further step of automatically pre- .I

determining the distance said cars shall travel in order to reach said destination.

4. ln a car distributing syst`em, tl1ecom-- of car accelerating means, actuated by ar source of power, means forautomatically indicating, when the-car accelerating means in actuating said car at tains a predetermined speed, means for ldetermining said speed in accordance With the condition under which said car isactuated, and means for automatically predetermining Said condition.

5. lin the art of car distribution, the metl od which comprises accelerating a car, determining the frictional resistances opposing the acceleration'of said car, and continuing the acceleration for aper-iod of time depend` the magnitude of the frictional reent upon sistances.

6. The combination with ca npropellingi' ator and the combination of centrifugalgov-7 -ernors diiierentiallyv connected to Weighing mechanism for-the automatic determination and indication of the speed required in order that said car may travel a' predetermined distance after leaving said accelerator.

9. In 'a car accelerator; the combination of f centrifugal governors, Whose speed is dependent upon the speed' of said accelerator,

automatic mechanism-for the determination of the frictional resistance of car or cars and means for effecting an indication at an automatically determined speed when the equilib.

rium of said governors and mechanism becomes unstable.`

10. 'l`he combination in a car controlling system, of a car, car propelling means, a device for automatically indicating the point at which the power shall be cut ofti'rom said propelling means, and mechanism*manually4 .and automatically adjustable in accordance with any predetermined distance Which lit-is desired said carshall travel for determining. the speed acquiredby it before said device operates. l

- .11.' Apparatusv for' d'stributing cars, coin-" fprising means for determining the Weightl of a car, means for automatically determining the distancel which said car is to be moved, and means controlled by both of saidl means for indicating' when the force applied to tlie car'has attained the magnitude yre- -miired to move it to its destination.'

Macnee atically determining' the total 12. Apparatusi'ifor distributing cars, comp'rising an accelerating mean`s,-a control de vice actuated bys'ai-d means in accordance with thetorce exerted on aj c'ar, a-second con* trol device actuated in accordance withl the speed of the car during acceleration, a. third control' device automatically'` operative in f accordancew-ith thedistance through'A which saidxcar is to be moved, and

'm'eansfo eratedy `by'allof said controlldevicesgfor in" ica'ting the degree' .of acceleration required to propel il said car toits destination.l

13. Apparatus for-distributingcars, comi prisi'ngmeans for imparting momentum-to a-car at'the'beginmng of its-path of' travel,

a control device actuated in accordance witli'f-.

the work required 'to produce acceleration of the car,'a control device. autoin atica-llyI operative in accordance with theI distjanceto` be traveled by said 'c ar, bysaid control devices toindicate' when said and means'Loperated' car has been given a I nomentum'suiicienlsf-to f carryit to its destination`.-

14. .Apparatusfr distributing fears, com? prisi'ng accelerating means, means A for -in?f 'dic-ating the accelerationgremiired.to Carry-f' a car to its destination ,"governing meansVl controlling said indicatingv -l-means, a device actuated iny accordance ,with thejweight of the car, a device actuat ed'by the forcefezr, erted by said accelerating' means, and. ade.

vice operative in accordance 'with the. dis-'1.

tance to be traveled byfsaidfcar, the 'Saidfdevices .cooperating-tocontrol said :governing f means.

. 15. Apparatus foridstributincars, com

prisingaccelerating means, means 'for indicating the acceleration requiredto carry a-y carfto its/destination, ajgovernorcontrollingf i i "105 `accordancev wit-h the Weight of thefcar, a desv .vice actuated 'by the-force exerted Vby said.' acceleratingmeangand means .for

cooperation of saidfdevices, to controlssaid saidindicating means," a.,'. device actuated in,

effecting governor.

- 16. niefmahoa'o'f meditating are, laica e j comprisesA automatically determining the ref sistanceto movement of a car and the dis-I 4tai'iceto, which' the `-c'zanis to be moved, yandapplying a propelling 'force suficient` .toovercome said resistance and `to move said car to its destination.

rz. 'nw method of .-'diaabuang een;

which comprises determining' the distancoila -car is to be moved, determining the weight the coeiiicient of frictioif per unit of distance and Weight, and ap-v 'of the car, determining plying an accelerating force to said car suf- -iicient to carry it to its destination. kwis 1 8; The method ofv 'distributing cars,

Whiclr comprises determining "the resistance;

yto movement fot a car and the distance to which the car to be moved, determining the coecient of friction per unit ot' distancey and Weight, and applying a propelling torce' su thefcoeiicient.of-'friction per unit of Weight' suilicient to overcome said" resistance and i to move 'said carto its destination, the said l for a periodoftime dependent 40 f manually anda'utomatieal y v termined distance." I"

force being "applied only during thewintial said' can' vuring 'a portion of its' traveghlsu" 20..In `afca'r f'dist rijoutin system; ,means --adjustable accordance 4with the distance a 'cartravel on e-y predetermhied route,y and means for temporarilf)7 accelerating the carto canse its movement through 'said' distance, the' madnitude' of the acceleration. depending on'4 the "distance to be travelled.

)21. In a car' distributlng for Weighing a` car, and meansfortempo'- rari'ly applying a,forceto:.'1nove.snch oar a predetermined distance, the'v magnitude of 22.-- -Inraj @tage-Sr message@ gmail; ating agent," anlo'oject to be accelerated, and' means' :for determining -inl'f'accorldance i with' and distance said' Object'- "the kinetic energy necessaryV tn move such object. a prede` .2a iathe'distribuaenfif-arend mail-e which comprises acceleratin 'a ear, .l.we igli ing the car duringthe acce eration period,

and thereafter Vcontinuing the acceleration uponlfthweight of the car.y

24. *In tli di' tribution ofucars,tlie. method f which comprises accelerating apcar, during the acceleration period .determining the Weight of the car, its frictionai resistances,

and Vthe distance to be travelled bythe car, and thereafter continuing the'accelerat-ion for a periodol time dependingl upon said factors;`

25. ln the distribution of carsfthe method which comprises accelerating'a car, during-" shall the acceleration "period-determilingjjtlie dis vtancetlie jca r,-..sliall travel .afterf-tlxeacceleration Vperiod, 'and thereafter fcntinuin'g the 1 ance, which'A Vcomprises during .acceleration determining'l'the weight' o f thefcaralid` the said accelera-tin# "agent, saidv speed-1e sponsive devices.indlcatmgthe speed re u1red 'deterx'ninedv point.

SarytfiinQVethe' object a predetermined dis- :ration necessary 'to shift 'aca'ragven ,dis-

`frictionale. ifesistances and simultaneously.

n -ac' `iel er'v ating -again, an. `object-tti -beaccelerated inf order to {reachf'-apredeterinined "point, A--a'nd'A speed responsive devices, D-QIdiI-iated with -i v2a in.:` a systemes described; an aceei erating agent, {en objeetj. to' accelerated, 'and means fqr'dctermi'ning the energynecesf,

'tance in .accordance ,with thevv coeliicient. 'of

resistanetomovement perunit of weight 1. and distance, saidgmeans includin speedlf ,responsive devices for indicati-ngt e""speed ieqiiiied'ior said accelerated object'to reach 'the predetermined point.

f 530, The method-ot' distributing cars which' `comprises determining the distance a car'is'V imv r to be moved, determining the `coeilicient off 'frition per unit of weight and distance of said car, and simultaneously accelerating the car, the magnitude offacceleration depending upon Vthe distance and the coeiiicientof friction'- EDWARD P HAINns.

njtestimony-whereof have hereunto affixed my signature this SOtliday of March, 

